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    Wyświetlanie 1-13 z 13
    Tytuł:
    Multi-objective conceptual design optimization of a domestic unmanned airship
    Autorzy:
    Amani, S.
    Pourtakdoust, S. H.
    Pazooki, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/949225.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    airship
    multi-objective optimization
    Pareto optimality
    Opis:
    Autonomous airships have gained a high degree of importance over the last decades, both theoretically as well and practically. This is due to their long endurance capability needed for monitoring, observation and communication missions. In this paper, a Multi-Objective Optimization approach (MOO) is followed for conceptual design of an airship taking aerody- namic drag, static stability, performance as well as the production cost that is proportional to the helium mass and the hull surface area, into account. Optimal interaction of the afo- rementioned disciplinary objectives is desirable and focused through the MOO analysis. Standard airship configurations are categorized into three major components that include the main body (hull), stabilizers (elevators and rudders) and gondola. Naturally, component sizing and positioning play an important role in the overall static stability and performance characteristics of the airship. The most important consequence of MOO analysis is that the resulting design not only meets the mission requirement, but will also be volumetrically optimal while having a desirable static and performance characteristics. The results of this paper are partly validated in the design and construction of a domestic unmanned airship indicating a good potential for the proposed approach.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2014, 52, 1; 47-60
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    ANALIZA GRY MONETARNO - FISKALNEJ NA PRZYKŁADZIE GOSPODARKI POLSKIEJ
    ANALYSIS OF THE MONETARY-FISCAL GAME IN THE CASE OF POLAND
    Autorzy:
    Kruś, Lech
    Woroniecka-Leciejewicz, Irena
    Powiązania:
    https://bibliotekanauki.pl/articles/453758.pdf
    Data publikacji:
    2016
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
    Tematy:
    gra monetarno-fiskalna
    model makroekonomiczny
    równowaga Nasha
    Pareto optymalność
    fiscal monetary game
    macroeconomic modeling
    Nash equilibrium
    Pareto optimality
    Opis:
    Artykuł przedstawia wyniki analizy policy mix z wykorzystaniem niekooperacyjnej gry między władzami fiskalnymi i monetarnymi oraz modelu makroekonomicznego opartego na koncepcji nowej syntezy neoklasycznej. Dokonano estymacji modelu dla Polski w latach 2000-2014. Przeprowadzono szereg symulacji z wykorzystaniem modelu oraz systemu komputerowego wyznaczającego wypłaty gry. Przeanalizowano alternatywne policies mix w stosunku do realizowanych w przeszłości polityk: monetarnej i fiskalnej. Wyznaczono i przeanalizowano optymalne strategie odpowiedzi oraz strategie równowagi Nasha.
    Analysis of the policy mix is presented using a noncooperative game and a macroeconomic model formulated on the basis of the New Neoclassical Synthesis concept. The game describes interactions of the fiscal and monetary authorities. The model has been estimated for the Poland in 2000–2014. Simulations have been made using the model and the constructed computer based system calculating payoffs of the game. The fiscal and monetary policies alternative to the historical ones are shown and analyzed. The best response strategies and the Nash equilibria are derived and discussed.
    Źródło:
    Metody Ilościowe w Badaniach Ekonomicznych; 2016, 17, 2; 54-64
    2082-792X
    Pojawia się w:
    Metody Ilościowe w Badaniach Ekonomicznych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Finding the Pareto optimal equitable allocation of homogeneous divisible goods among three players
    Autorzy:
    Dall'Aglio, M.
    Di Luca, C.
    Milone, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/969068.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    fair division
    Pareto optimality
    graph theory
    adjusted winner procedure
    Opis:
    We consider the allocation of a finite number of homogeneous divisible items among three players. Under the assumption that each player assigns a positive value to every item, we develop a simple algorithm that returns a Pareto optimal and equitable allocation. This is based on the tight relationship between two geometric objects of fair division: The Individual Pieces Set (IPS) and the Radon–Nykodim Set (RNS). The algorithm can be considered as an extension of the Adjusted Winner procedure by Brams and Taylor to the three-player case, without the guarantee of envy-freeness.
    Źródło:
    Operations Research and Decisions; 2017, 27, 3; 35-50
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fuzzy Pareto Dominance in Multiple Criteria Project Scheduling Problem
    Autorzy:
    Krzeszowska-Zakrzewska, Bogumiła
    Powiązania:
    https://bibliotekanauki.pl/articles/578536.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Ekonomiczny w Katowicach
    Tematy:
    Algorytmy
    Harmonogram
    Optimum Pareto
    Optymalizacja wielokryterialna
    Planowanie projektu
    Zarządzanie projektem
    Algorithms
    Multiple criteria optimization
    Pareto optimality
    Project management
    Project planning
    Schedule
    Opis:
    Planning is one of the most important aspects of project management. A project plan defines objectives, activities and timeframe for project realization. To be able to define the required timeframe for project realization it is important to prepare its schedule. The purpose of this paper is to present the project scheduling problem as a multiple criteria decision making problem and to solve it using two evolutionary algorithms: SPEA2 and an evolutionary algorithm driven by the fuzzification of Pareto dominance. A comparison of these two approaches is conducted to investigate if it is reasonable to use the fuzzification of the Pareto dominance relation in evolutionary algorithms for the multiple criteria project scheduling problem
    Źródło:
    Multiple Criteria Decision Making; 2015, 10; 93-104
    2084-1531
    Pojawia się w:
    Multiple Criteria Decision Making
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of strategies in a monetary-fiscal game. The case of Poland
    Autorzy:
    Krus, L.
    Woroniecka-Leciejewicz, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/205618.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    monetary-fiscal game
    macroeconomic modeling
    Nash equilibria
    Pareto optimality
    Opis:
    A monetary-fiscal game describing the interactions of the fiscal and monetary authorities is formulated and analyzed. A macroeconomic model for the Polish economy has been formulated on the basis of the concept of New Neoclassical Synthesis and respectively extended so as to accommodate the effects of fiscal policy. Several variants of the model have been estimated using statistical data for the Polish economy. It is assumed in the game that each party (monetary and fiscal) tries to achieve its own goal: the fiscal authority – the assumed GDP growth, and the monetary authority – an inflation level. The best response strategies of the authorities and the Nash equilibria are calculated and analyzed in two cases, namely when the decisions are made simultaneously and sequentially. The simulation results obtained indicate that when the authorities try to achieve independently their goals, in a general case the Nash equilibrium is not Pareto optimal. The best response strategies may lead to conflict escalation and to results which are not beneficial for both parties.
    Źródło:
    Control and Cybernetics; 2016, 45, 2; 163-183
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biogeography-inspired multiobjective optimization for helping MEMS synthesis
    Autorzy:
    Di Barba, P.
    Mognaschi, M. E.
    Venini, P.
    Wiak, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/140410.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    biogeography-inspired optimisation
    finite-element method
    MEMS
    multiphysics
    analysis
    Pareto optimality
    Opis:
    The aim of the paper is to assess the applicability of a multi-objective biogeography- based optimisation algorithm in MEMS synthesis. In order to test the performances of the proposed method in this research field, the optimal shape design of an electrostatic micromotor, and two different electro-thermo-elastic microactuators are considered as the case studies.
    Źródło:
    Archives of Electrical Engineering; 2017, 66, 3; 607-623
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of Adoption of Inventory Control System on Customer Service Delivery: A Case of Chuka University College of Tharaka Nithi County, Kenya
    Autorzy:
    Mamo, Nuria
    Powiązania:
    https://bibliotekanauki.pl/articles/1192690.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    EOQ
    JIT
    MRP I and II
    ABC Analysis
    Customer care
    Pareto optimality
    Opis:
    This study investigated the effects of inventory control system on customer service delivery in Chuka University. The objectives were to identify the nature of inventory control techniques used by different departments in higher learning institution, to find out the extent of adoption of inventory control techniques by different department in higher learning institution and to determine the effect of inventory control techniques on customer service delivery in higher learning institution. The study employed the descriptive research design and the use of questionnaire in data collection. The sample was carefully selected from the population of 250 employees by use of purposive random sampling procedure. Purposive sample of seven departments providing customer service delivery was selected and sample size of 13 employees was selected from each department depending on the number of employees who provided reliable information. The data were presented using diagrams and tables. Analysis was done using frequencies and percentages. Hypotheses was tested for significance of relationship between dependent and independent variables using the chi-square. It was established that the stocks were well managed in Chuka University departments. It was found that various inventory control techniques like the JIT, two-bin and visual review were moderately employed by the departments in Chuka University. 38.4% of the employees recommended the JIT technique to be used most frequently and 30.8% suggest the TBS not to be used at all. It was established that all the stock control system were employed in Chuka University and were fairly implemented. The findings of this study will be used by the institution to come up with the appropriate inventory control model that fully satisfies customer service delivery. The recommendation is that management of the university should provide continuous training to familiarize employees on appropriate inventory control techniques.
    Źródło:
    World Scientific News; 2016, 46; 145-164
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of the historical policy mixes for Poland using the game approach
    Autorzy:
    Kruś, L.
    Woroniecka-Leciejewicz, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/205620.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    game theory
    economic modeling
    policy-mix
    decision analysis
    Nash equilibrium
    Pareto optimality
    Opis:
    The study here presented pertains to the analysis of mutual interactions of the monetary and fiscal policies in the case of Poland. The historical policies carried out during different periods of time and their economic effects are compared with the possible strategies, obtained from the analysis of the proposed monetaryfiscal game. In the study, the methods of non-cooperative game theory are combined with macroeconomic modeling. The respective game is formulated for monetary and fiscal authorities as players. Strategies of these players refer to the respective instruments of their policies: the real interest rate and the budget deficit in relation to GDP. Payoffs include inflation and GDP growth, respectively. The payoffs are calculated using a recursive macroeconomic model estimated for the Polish economy. The model describes influences of the instruments of the monetary and fiscal policies on the state of the economy. The best response strategies, the Nash equilibria and Pareto optimality are analyzed. Changes of the policies towards the more restrictive or more expansive ones and their effects in comparison to the historically applied are discussed. This is performed for two different time periods – the time of recovery after 2004 and the time of the global financial crisis after 2008.
    Źródło:
    Control and Cybernetics; 2018, 47, 3; 277-300
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hyperbolicity of Systems Describing Value Functions in Differential Games which Model Duopoly Problems
    Autorzy:
    Zwierzchowska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/375973.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    duopoly models
    semi-cooperative feedback strategies
    Pareto optimality
    hyperbolic partial differential equations
    Opis:
    Based on the Bressan and Shen approach (Bressan and Shen, 2004; Shen, 2009), we present an extension of the class of non-zero sum differential games for which value functions are described by a weakly hyperbolic Hamilton–Jacobi system. The considered value functions are determined by a Pareto optimality condition for instantaneous gain functions, for which we compare two methods of the unique choice Pareto optimal strategies. We present the procedure of applying this approach for duopoly.
    Źródło:
    Decision Making in Manufacturing and Services; 2015, 9, 1; 89-100
    1896-8325
    2300-7087
    Pojawia się w:
    Decision Making in Manufacturing and Services
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Necessary and sufficient conditions for a Pareto optimal allocation in a discontinuous Gale economic model
    Autorzy:
    Michalak, A.
    Studniarski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/255729.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    Gale model
    discontinuous functions
    generalized directional derivatives
    higher-order conditions
    Pareto optimality
    Opis:
    In this paper we examine the concept of Pareto optimality in a simplified Gale economic model without assuming continuity of the utility functions. We apply some existing results on higher-order optimality conditions to get necessary and sufficient conditions for a locally Pareto optimal allocation.
    Źródło:
    Opuscula Mathematica; 2014, 34, 4; 827-835
    1232-9274
    2300-6919
    Pojawia się w:
    Opuscula Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stability kernel in finite games with perturbed payoffs
    Autorzy:
    Emelichev, Vladimir
    Nikulin, Yury
    Powiązania:
    https://bibliotekanauki.pl/articles/2183484.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    post-optimal analysis
    multiple criteria
    kernel stability radius
    independent perturbations
    finite games
    Pareto optimality
    Nash equilibrium
    Opis:
    The parametric concept of equilibrium in a finite cooperative game of several players in a normal form is introduced. This concept is defined by the partitioning of a set of players into coalitions. Two extreme cases of such partitioning correspond to Pareto optimal and Nash equilibrium outcomes, respectively. The game is characterized by its matrix, in which each element is a subject for independent perturbations., i.e. a set of perturbing matrices is formed by a set of additive matrices, with two arbitrary Hölder norms specified independently in the outcome and criterion spaces. We undertake post-optimal analysis for the so-called stability kernel. The analytical expression for supreme levels of such perturbations is found. Numerical examples illustrate some of the pertinent cases.
    Źródło:
    Control and Cybernetics; 2022, 51, 1; 6--20
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evolutionary Multi-Objective Pareto Optimisation of Diagnostic State Observers
    Autorzy:
    Kowalczuk, Z.
    Suchomski, P.
    Białaszewski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/908280.pdf
    Data publikacji:
    1999
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    diagnostyka
    wyodrębnienie i wykrycie błędu
    algorytm genetyczny
    obserwator stanów
    diagnostics
    fault detection and isolation
    genetic algorithms
    multi-objective optimisation
    Pareto optimality
    residuals
    state observers
    Opis:
    A multi-objective Pareto-optimisation procedure for the design of residual generators which constitute a primary instrument for model-based fault detection and isolation (FDI) in systems of plant monitoring and control is considered. An evolutionary approach to the underlying multi-objective optimisation problem is utilised. The resulting robust observer detector allows for FDI, taking into account the issue of false alarms.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 1999, 9, 3; 689-709
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Niching mechanisms in evolutionary computations
    Autorzy:
    Kowalczuk, Z.
    Białaszewski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/908461.pdf
    Data publikacji:
    2006
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    algorytm genetyczny
    projektowanie inżynierskie
    obliczenia ewolucyjne
    obserwator detekcyjny
    niching
    ranking
    Pareto optimality
    genetic algorithms
    evolutionary computations
    multi-objective optimisation
    solutions diversity
    engineering designs
    detection observers
    Opis:
    Different types of niching can be used in genetic algorithms (GAs) or evolutionary computations (ECs) to sustain the diversity of the sought optimal solutions and to increase the effectiveness of evolutionary multi-objective optimization solvers. In this paper four schemes of niching are proposed, which are also considered in two versions with respect to the method of invoking: a continuous realization and a periodic one. The characteristics of these mechanisms are discussed, while as their performance and effectiveness are analyzed by considering exemplary multi-objective optimization tasks both of a synthetic and an engineering (FDI) design nature.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2006, 16, 1; 59-84
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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